External compensation for input current source

Details External compensation for input current source External compensation for input current source

2011-03-22

2011-03-22

Tra, Quan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S112000

Reexamination Certificate

active

07911262

ABSTRACT:
An integrated circuit includes: a pre-driver stage, coupled to an external supply voltage, for controlling the final driver stage; a final driver stage, coupled to the pre-driver stage and the external supply voltage, for providing an output voltage; a compensation circuit, coupled to the pre-driver stage, for providing a bias voltage to the pre-driver stage that compensates for variation in the external supply voltage, to control current through the pre-driver stage; and a bias circuit, coupled to the external supply voltage and the compensation circuit, for providing a bias voltage as an input to the compensation circuit.

REFERENCES:
patent: 5581197 (1996-12-01), Motley et al.
patent: 6111457 (2000-08-01), Lim et al.
patent: 6614295 (2003-09-01), Tsuchi
patent: 2003/0025541 (2003-02-01), Humphrey et al.
patent: 2004/0150464 (2004-08-01), Khalid

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